When I got my first Base tune from Adam the ghost cam was already turned on and I had thought I somehow installed my spark plugs wrong since I installed the spark plugs right before I installed his base tune. scared me at first but once he told me what it was, I was much happier. it was definitely a cool sounding feature. that's for sure. I am very happy with the results from mine. I too agree with the sound from one tune to another. Adams tune is MUCH smoother and sounds cleaner and healthier.